Improvement in pumps



PATENT Erica.

ELIAS HALE, OF TERRE HAUTE, INDIANA.

IMPROVEMENT lN-PUMPS.

Specification forming part of Letters Patent No. 41,151. dated January5, 1364.

TJ all whom it may concern Be it known that I, ELIAS HALE, of TerreHaute, in the county of Vigo and State of Indiana, have invented a newand Improved Arrangement for Operating the Pistons of Double- CylinderForce-Pumps; and I do hereby declare that the following is a full andexact description thereof, reference being had to the accompanyingdrawings, making part of this specification.

Figure l is a perspective view of my improved pump; Fig. 2, a sideelevation ot' the arrangement for operating the pistons.

Like letters of reference indicate corresponding parts in both ligures.

My invention consists in an improved arrangement of the actuating partsconnected with the pistons of a double-cylinder forcepump, whereby theoperating-lever may be raised or lowered at pleasure without adjustingthe vibrating bars correspondingly, and the stroke of said lever isgaged to adapt it to the length of the pump-cylinders, so that thepistons will not be withdrawn nor the valves tripped, and so that thepiston-rods pass directly through the operating-lever, in order to workeasily and regularly.

As represented in the drawings, a suitable base, A, is provided, towhich is secured a forcepump of any suitable kind, the two open-toppedcylinders B B being the only parts of the same shown. The cylinders aresituated at suitable distance apart, and between them rests a standard,C, provided with a set of adj ustin g-holes, g g, by which means adoublehandled operating-lever, I), is secured and adjusted either higheror lower, as may be desirable or necessary. This operating-lever isprovided with a long central opening, h, Fig. l, through which pass thepiston-rods, as will presently be explained, and the lever is secured bymeans of a bolt which passes through its two sides and the standard C.To the operating-lever, at a suitable distance from the center, oneither side, are jointed connecting-rods E E', the opposite ends ofwhich are similarly jointed to vibrating bars Gr G above, said barsextending inward, and having a bend, d, at the inner end, provided witha set of adjusting-holes, f f, through any of which passes a bolt, a, topivot the bars to the standard. The ordinary device used in place of thevibrating bars Gr G is asingle stiff centrallypivoted bar projecting oneither side of the standard. In such an arrangement, in order to adjustthe operating-lever higher or lower, the stiff bar must also beadjusted. Intermediately with the standard C and connecting-rods E E thepiston-rods H H are jointed to the vibrating bars, as represented at b.The upper ends of the piston-rods are also provided with a set ofadjusting-holes, c c, by which means they may be adjusted higher orlovxer at any time. 0n one or both sides ot' the standard C theoperating-lever is provided with adjusting ga-ge-holes t' z', into anyof which fits a bolt, lo, as clearly represented in Fig. 1. By the useof thisarrangement I am enabled to exactly gage the length of stroke ofthe pistons as desired, the bolt k striking the side of the standard atthe extreme of its upward and downward movement, and thus arresting theaction of the pistons.

Among the advantages of this arrangement of parts are the following:

First. I am enabled to adjust the operatinglever higher or lower on thestandard without similarly adjusting the vibrating bars G G', the latterturning on the pivot a and merely changing their angle, but performingthe same functions, whatever may be the relative position oftheoperating-lever. This cannot be the case with a stiff rock-bar, for inthat the bar itself must be adjusted the same as the lever. Theadjustability of the operating-lever up and down is necessary in manycases-such, for instance, as to accommodate the-lever to inconvenientpositions in which the pump may be placed, or to the different heightand capacity of the persons opera-ting it. The adjusting-holes f j' inthe bends ot' the vibrating bars allow the position of said bars to bechanged, if at any time in adjusting the operating-lever the angleshould become too acute.

Second. By the employment of the elongated opening h in theoperating-lever the piston-rods pass directly and centrally from thevibrating bars to the cylinders.

Third. The length of stroke of the pistons is gaged exactly by theemployment of the bolt k, and this length of stroke is adjustable, so asto be adapted to cylinders of different sizes, by means of the holes t't'. Were it not for this gage, the pistons would be liable to be drawnout of the cylinders or forced in so far as to trip the valves in the upand down motions. By the use of this device there can be no difficultyof the kind.

I do not claim separately any of the parts herein described; but

What I claim as my invention, and desire to secure by Letters Patent,is-

The adjustable lever D, provided with the opening h and adjustinggage-bolt k, the connecting-rods EVE', vibrating bars G G', and

standard C, the Whole arranged and operatingl relatively to thepiston-rods H H and cylinders B B substantially as hereinset forth.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

ELIAS HALE. Witnesses:

M. M; HOLMES, I). G. FoRs'rE.

